- 92 -
000413BG
8 - Maintenance
- Code on display
- Error message
- Signal
Name of Alarm and Cause
Solution
- E030
- Error Meas Ileak
-
Yellow LED
High leakage current (DC side):
Error in the internal measurement (made when the in-
verter is grid connected) of the leakage current of the
DC side (PV generator) compared to ground (set by law)
in order to have a redundant measurement (2 measu-
rements on the same parameter made by two different
circuits)
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E031
- Error Read V
-
Yellow LED
Output relay damaged:
Measurement of internal voltage on heads of the output
relay outside of range. There is too great a difference in
voltage between the input and output of the grid connec-
tion relay.
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E032
- Error Read I
-
Yellow LED
Imbalanced output currents:
Measurement of the unbalance in the output voltage
(made across the three phases) outside of range (only
in triphase models)
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E033
- UTH
-
Yellow LED
Low ambient temperature:
Temperature outside the inverter below -25°C
• Wait for the temperatures to which the inverter is exposed to
return to the operating range.
- If the problem persists, contact customer assistance. Remem-
ber to wait the time needed to allow the inverter to warm up
- E034
- Interlock fail
-
Yellow LED
“IGBT” circuitry not ready:
Error inside the inverter
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E035*
- Remote Off
-
Yellow LED
*not visualised on di-
splay
Inverter awaiting “remote ON” command:
The inverter has been switched off remotely (remote
OFF) and remains awaiting the signal which will switch it
back on (Remote ON)
• Switch back on the inverter remotely. If the unit does not switch
back on, disable the remote off/on function and switch the
equipment off completely and subsequently switch it back on.
- If the problem (once the Remote ON/OFF function from the di-
splay has been reactivated) persists, contact customer assistan-
ce.
- E036
- Vout Avg error
-
Yellow LED
Average of the measurements of grid voltage out-
side of range:
The average value of the grid voltage (sampled every 10
minutes) does not fall within the permitted ranges. The
grid voltage in the point connected to the inverter is too
high. This may be caused by too high a grid impedance.
In the final stage of the timeout, the inverter limits the po
-
wer to check whether the grid voltage has stabilised into
regular parameters. If this does not happen, the inverter
disconnects from the grid
• Check the
grid voltage in the connection point to the inverter.
- If the grid voltage differs from the range due to the conditions of
the distribution grid, ask the operator to adjust the grid voltage.
If the operator authorises a change to the inverter's parameters,
agree the new limits with customer assistance
- E037
- Riso Low
-
Red LED
Low value of the insulation resistance (only with the
“Amorphous” mode activated):
This error can occur only should the “Amorphous” mode
be on. This function is on only in inverters equipped with
a grounding kit and serves to monitor the voltage at the
heads of the grounding resistance. The error occurs
when the voltage at the heads of the resistance con-
nected between ground and the pole of the photovoltaic
generator exceeds 30V for more than 30 minutes or
120V for more than one second.
• Check for the presence and correct contact between the two
terminals of the grounding resistance installed inside the inverter
• Measure the
insulation resistance using a megohmmeter posi-
tioned in the photovoltaic field (positive terminal short-circuited
at the negative pole) compared to ground. The measurement is
strongly influenced by the environmental conditions, so must be
made under the same conditions in which the error occurred.
- If the value measured is lower than 1 megaohm, a check must
be carried out by a technician/installer on the photovoltaic gene-
rator to identify and eliminate the problem.
- If the value measured is higher than 1 megaohm and the error
signal persists, contact customer assistance.
E046
- String self test fail
-
No LED
Error during the automatic check of the string volta-
ges (only in models with the “fuse-control” board):
In some inverter models it is possible to carry out the
check test of the polarity of the strings connected to the
input (e.g.:TRIO-20.0/27.6kW).
This error signal occurs when, during the test stage, an
inverted string is recorded
• Section the inverter and check the polarity of the string(s) which
the inverter has recorded as inverted.
- Once all the strings have been correctly connected, activate the
system once again; the inverter will once again check the correct
polarity of the string inputs at the end of which it will carry out the
checks for the grid connection.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
E049
- AC FF Error
-
Yellow LED
Error in the “AC feed-forward” circuit:
Error inside the inverter
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
